Extensive & growing use of social media

Forrester Research, a leading media research firm, has released an extensive study on U.S. usage of social media. At this point, four out of five U.S. online adults report using social media at least once per month. Half participate in sites like Facebook and LinkedIn.
Forrester classifies users into categories:

• Joiners — those who simply visit blogs and social media sites;
• Creators — the 25% who create content in one way or another for blogs, social sites, etc;
• Collectors — the 20% who use tags, RSS feeds, voting sites (like Digg and Reddit) to assemble or categorize web content.
• The most rapid growth in social net usage is occurring among those age 35 and older, prompting Forrester to recommend that every marketer needs to be in the social media biz today.